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Need advice 94 grand cherokee tranny install


 
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Franchise2K
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Joined: 09 Mar 2006

PostPosted: Thu Mar 09, 2006 12:51 pm    Post subject: Need advice 94 grand cherokee tranny install Reply with quote

Hello, I am about to put a brand new tranny in my 94 grand cherokee. My other tranny imploded, (lot's of metal). My question is what do i need to do to get all the metal out before i put my new one in?
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Jeepfleet
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Joined: 25 Feb 2006
Location: So.Shore MA

PostPosted: Thu Mar 09, 2006 12:58 pm    Post subject: Cooler Flush Reply with quote

You gotta flush out your tranny cooler and lines you can buy an arisol can of it at a good parts store.
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Franchise2K
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Joined: 09 Mar 2006

PostPosted: Thu Mar 09, 2006 5:32 pm    Post subject: Reply with quote

Thanks, one more question, how about the transfer case??
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1fox2go
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Joined: 01 Dec 2004
Location: Fishersville, Virginia

PostPosted: Thu Mar 09, 2006 7:13 pm    Post subject: Reply with quote

you dont need to flush the tcase and did your tranny die? mine had metal in it and it was from the lock up band in the torque converter the trans was fine we just drained the fluid put in fresh and drained that then new fluid again we ran it for some miles before finally leaving the fluid in it
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96 Cherokee 7.5 inch TnT long arm Locked F/R, D44 rear, 4.56s, 35x12.50 Muds/36x12.50 TSLs
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Franchise2K
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Joined: 09 Mar 2006

PostPosted: Thu Mar 09, 2006 7:21 pm    Post subject: Reply with quote

yeah it died, i was rolling about 75 on the interstate where it broke. It has terrible whining, the bands get hot and it won't move. I pulled the pan and the magnet was covered with metal. Looked like a chia pet.
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swamp boy
Cherokee Muderator
Cherokee Muderator


Joined: 01 Jan 2004
Location: New Orleans LA.

PostPosted: Thu Mar 09, 2006 9:35 pm    Post subject: Reply with quote

Another quick bit of advice... make sure you remove the check valve from the radiator where the cooling lines go in.. And check the cooler (if you have a secondary cooler) make sure it doesnt have one.. Its very common for the check valves to get stuck and stop fluid flow which causes the tranny to overheat and die...

Do not run the new tranny til you are sure you got the check valves out.. It may be what killed this one and it will kill the next as well..

Good luck..

Carl
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Unless you include the sawzall work..

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Franchise2K
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Joined: 09 Mar 2006

PostPosted: Fri Mar 10, 2006 7:17 pm    Post subject: Reply with quote

Well the funny thing is a couple of days prior I could feel it knocking underneath the floorpan. One more thing, do I leave the check valves out permanately??
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swamp boy
Cherokee Muderator
Cherokee Muderator


Joined: 01 Jan 2004
Location: New Orleans LA.

PostPosted: Sat Mar 11, 2006 5:33 am    Post subject: Reply with quote

Yes... Just toss them.. They only make sure the flow of Tranny fluid goes only one way.. But honstly the pump is pushing the fluid and its only going to go one way...


I run an aftermarket cooler on mine and it has no check valve..

Carl
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Unless you include the sawzall work..

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Franchise2K
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Joined: 09 Mar 2006

PostPosted: Sun Mar 12, 2006 12:01 pm    Post subject: Reply with quote

I was talking to a service tech at Chrysler and he was really trying to get me to let a professional do the job. He said it was extremely risky to do =the job myself. He told me that they have a vaccum system that they use to clean out the system, and if I don't get it clean the other tranny will fail. I understand that but the real question is, can i get the system cleaned out myself?? Do I need to take the Jeep with the tranny out somewhere to get the lines cleaned?? I really want to do this myself so i won't have to pay labor. I just want to make certain that I can clean everything perfectly.
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swamp boy
Cherokee Muderator
Cherokee Muderator


Joined: 01 Jan 2004
Location: New Orleans LA.

PostPosted: Sun Mar 12, 2006 3:34 pm    Post subject: Reply with quote

You can do it yourself without a vacuum pump... Take off the lines and pull out the check valve and use an air compressor to blow thru the lines and the tranny cooler...as well as the radiator... (this will be messy..)

Keep in mind that you will have to blow thru every single line... Do this til they are clean...

Its not hard... I flush my tranny once a year and have had no problems..

(Untill I broke a cooling line and burned it up trying to get out of the woods.. Mr. Green )

No you do not have to flush your tranny once a year but I do because I do alot of deep water ....
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Unless you include the sawzall work..

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